#
#  Copyright (c) 2008 Helmut Merz helmutm@cy55.de
#
#  This program is free software; you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation; either version 2 of the License, or
#  (at your option) any later version.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with this program; if not, write to the Free Software
#  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#

"""
Basic implementations for stateful objects and adapters.

$Id$
"""

from zope import component
from zope.component import adapts

from cybertools.stateful.base import Stateful as BaseStateful
from cybertools.stateful.base import StatefulAdapter
from cybertools.stateful.interfaces import IStatesDefinition
from loops.interfaces import ILoopsObject


class Stateful(BaseStateful):

    def getStatesDefinition(self):
        return component.getUtility(IStatesDefinition, self.statesDefinition)


class StatefulLoopsObject(Stateful, StatefulAdapter):

    adapts(ILoopsObject)

    def getAvailableTransitionsForUser(self):
        return self.getAvailableTransitions()


class SimplePublishable(StatefulLoopsObject):

    statesDefinition = 'loops.simple_publishing'